/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.execution.scheduler.nodeSelection;

import com.facebook.presto.execution.scheduler.NodeMap;
import com.facebook.presto.metadata.InternalNode;
import com.facebook.presto.spi.HostAddress;

import java.util.List;

import static com.google.common.collect.ImmutableList.toImmutableList;
import static java.util.Comparator.comparing;

public class NodeSelectionUtils
{
    private NodeSelectionUtils() {}

    static List<HostAddress> sortedNodes(NodeMap nodeMap)
    {
        return nodeMap.getNodesByHostAndPort().values().stream()
                .sorted(comparing(InternalNode::getNodeIdentifier)).map(InternalNode::getHostAndPort)
                .collect(toImmutableList());
    }
}
